ArticleScientific reports2021
Vibration direction sensitivity of the cochlea with bone conduction stimulation in guinea pigs.
Article in Scientific reports, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 7 papers.
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7 citing papers in PubMed, 19 citations in OpenAlex.
- Correlation of Promontory Vibration and Sound Emission Recorded from the Skin Surface in Bone Conduction Stimulation.Journal of the Association for Research in Otolaryngology : JARO · 2026Article
- Finite element analysis on the human and guinea pig cochlear vibration patterns under bone conduction stimulations.Scientific reports · 2024Article
- Directional sensitivity of bone conduction stimulation on the otic capsule in a finite element model of the human temporal bone.Scientific reports · 2024Article
- Measurements of bone-conducted sound in the chinchilla external ear.Hearing research · 2024Article
- Mechanical effect of reconstructed shapes of autologous ossicles on middle ear acoustic transmission.Frontiers in bioengineering and biotechnology · 2023Article
- Review of Whole Head Experimental Cochlear Promontory Vibration with Bone Conduction Stimulation and Investigation of Experimental Setup Effects.Trends in hearingReview
- Effects of Stimulation Position and Frequency Band on Auditory Spatial Perception with Bilateral Bone Conduction.Trends in hearingArticle
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Authors and funding
3 authors at 1 institution in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Sound and vibrations that cause the skull bone to vibrate can be heard as ordinary sounds and this is termed hearing by bone conduction (BC). Not all mechanisms that causes a skull vibration to result in BC hearing are known, and one such unknown is how the direction of the vibration influences BC hearing. This direction sensitivity was investigated by providing BC stimulation in five different directions at the vertex of the guinea pig skull. The hearing thresholds for BC stimulation was obtained in the frequency range of 2 to 20 kHz by measurements of compound action potential. During the stimulation by BC, the vibration of the cochlear promontory was measured with a three-dimensional laser Doppler vibrometer resulting in a set of unique three-dimensional velocity magnitude combinations for each threshold estimation. The sets of three-dimensional velocity magnitude at threshold were used to investigate nine different predictors of BC hearing based on cochlear promontory velocity magnitudes, six single direction (x, y and z directions in isolation, the normal to the stapes footplate, the oval to round window direction, and the cochlear base to apex direction), one linear combination of the three dimension velocity magnitudes, one square-rooted sum of the squared velocity magnitudes, and one sum of the weighted three dimensional velocity magnitudes based on a restricted minimum square error (MSE) estimation. The MSE gave the best predictions of the hearing threshold based on the cochlear promontory velocity magnitudes while using only a single direction gave the worst predictions of the hearing thresholds overall. According to the MSE estimation, at frequencies up to 8 kHz the vibration direction between the right and left side gave the greatest contribution to BC hearing in the guinea pig while at the highest frequencies measured, 16 and 20 kHz, the anteroposterior direction of the guinea pig head gave the greatest contribution.
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